WO2019144444A1

WO2019144444A1 - Detachable coupler mechanism for coupling carriages based on gear transmission

Info

Publication number: WO2019144444A1
Application number: PCT/CN2018/076228
Authority: WO
Inventors: 蔡洪祥; 沈群华
Original assignee: 常熟虞通光电科技有限公司
Priority date: 2018-01-26
Filing date: 2018-02-11
Publication date: 2019-08-01
Also published as: CN110446646B; CN110446646A; CN108556867B; CN108556867A

Abstract

Provided is a detachable coupler mechanism for coupling carriages based on gear transmission. The mechanism comprises a front carriage connecting rod (1), a driving housing (7) and a rear carriage connecting rod (8). The derailment of a front carriage causes the front carriage to drive the front carriage connecting rod to swing, and the front carriage connecting rod further drives a first gear (2) to rotate; the rotation of the first gear drives three second gears (5) to rotate; the rotation of the three second gears drives the driving housing to rotate; the rotation of the driving housing drives three fourth gears (10) to rotate; and the rotation of the three fourth gears drives a limiting drive gear (15) to rotate. During the rotation of the limiting drive gear, when one guide slot (27) in a limiting drive cylinder cooperates with a corresponding guide notch (25) in a limiting coupler (16), the rear carriage connecting rod and a limit block (24) mounted thereon will disengage from the front carriage along the corresponding guide slot and guide notch, thus preventing a train from turning over.

Description

Removable hook mechanism for car connection based on gear transmission

Technical field

The invention belongs to the technical field of car connection, and particularly relates to a detachable hook mechanism for a car connection based on a gear transmission.

Background technique

At present, the traditional train cars are interlocked with each other by the couplers; the material of the couplers is relatively high; the friction between the couplers is seriously damaged; if the front car is derailed during use, the front car and the rear car will swing.

technical problem

If the two compartments are interlocked with each other, when the front compartment derails and the rear compartment swings, the front compartment may drag the rear compartment to cause the rear compartment to roll over; the life and property of the people are brought The effect is therefore very important to design a train car connection mechanism in which the rear car can be completely disengaged from the front car when the front car is derailed and the rear car is swung relative to the rear car.

Technical solution

In order to solve the above-mentioned drawbacks in the prior art, the present invention discloses a detachable hook mechanism for a vehicle connection based on a gear transmission, which is realized by the following technical solutions.

A detachable hook mechanism for a car connection based on a gear transmission, characterized in that it comprises a front car connecting rod, a first gear, a first shaft hole, a first circular hole, a second gear, a third gear, Drive shell, rear trunk connecting rod, first supporting circular plate, fourth gear, first rotating shaft, second rotating shaft, third rotating shaft, sixth gear, limit driving gear, limit connection, second supporting circular plate, connection a sleeve, a limit block, a guide notch, a first cylindrical groove, a guide groove, a second cylindrical groove, wherein the rear car connecting rod is L-shaped; one end of the rear car connecting rod is connected with the rear car; the limit block is installed in the rear car connection The other end of the rod.

One end of the limit connection has two symmetrical guide notches and a intersection of the two guide notches forms a plane; the connection of the limit connection through the intersection of the two guide notches at the intersection thereof and the limit block is located at the limit block The upper side.

The first end of the limit drive gear has a first cylindrical groove; the bottom end of the first cylindrical groove has a second cylindrical groove; and the outer circular surface of the limit cylinder has two guide grooves at an acute angle; The bit drive cylinder is mounted on the limit connection by the cooperation of the first cylindrical groove and the outer ring surface of the limit connection; the side of the second cylindrical groove on the limit drive cylinder is away from the guide groove and cooperates with the rear car connecting rod.

The second supporting circular plate is installed at the upper end of the limiting connection; the three first rotating shafts are circumferentially evenly mounted on the lower end of the second supporting circular plate and away from the center of the second supporting circular plate; the three fourth gears are respectively installed in three a first rotating shaft; three second rotating shafts are circumferentially evenly mounted on the lower end of the second supporting circular plate and near the center of the second supporting circular plate; three third gears are respectively mounted on the three second rotating shafts; The three gears respectively mesh with the three fourth gears; the three third gears respectively mesh with the limit drive gears; the three third shafts are circumferentially evenly mounted on the upper end of the second support disc, and the three third shafts are away from each other a second supporting circular plate center; three second gears are respectively mounted on the three third rotating shafts; the first supporting circular plate has a circular hole at an intermediate position; a connecting sleeve is installed at an intermediate position of the first supporting circular plate end and The connecting sleeve is matched with the circular hole on the first supporting plate; the first supporting circular plate is installed at the upper end of the three third rotating shafts; the front connecting rod connecting rod is L-shaped; one end of the front connecting rod connecting rod is installed at the first through the connecting sleeve Supporting disc; front compartment The other end of the connecting rod is connected to the front car; the first gear is mounted on the front car connecting rod; the first gear is respectively meshed with the three second gears; the driving shell has a first shaft hole at one end; and the other end of the driving shell is open a first circular hole; the inner circular surface of the driving shell has teeth; the driving shell is mounted on the first supporting circular plate through the cooperation of the first shaft hole and the connecting sleeve; the first circular hole and the limit on the driving shell The cylindrical portion is fitted; the teeth on the inner surface of the driving shell are respectively meshed with the three fourth gears and the three second gears.

As a further improvement of the present technology, the diameter of the first gear is larger than the diameter of the limit drive gear.

As a further improvement of the present technology, the connecting sleeve and the driving shell are connected by a bearing fit.

As a further improvement of the present technology, the first gear and the front car connecting rod are connected by welding.

As a further improvement of the present technology, the above-mentioned connecting sleeve is mounted on the front compartment connecting rod through a bearing.

In the present invention, one end of the rear compartment connecting rod is connected to the rear compartment; the limiting block is mounted on the other end of the rear compartment connecting rod. The fit of the limit connection through the plane formed by the intersection of the two upper guide notches and the limit block is located on the upper side of the limit block. The limit drive cylinder is mounted on the limit connection by the cooperation of the first cylindrical groove and the outer ring surface of the limit connection; the side of the second cylindrical groove on the limit drive cylinder is away from the guide groove and cooperates with the rear car connecting rod. The second supporting circular plate is installed at the upper end of the limiting connection; the three first rotating shafts are circumferentially evenly mounted on the lower end of the second supporting circular plate and away from the center of the second supporting circular plate; the three fourth gears are respectively installed in three a first rotating shaft; three second rotating shafts are circumferentially evenly mounted on the lower end of the second supporting circular plate and near the center of the second supporting circular plate; three third gears are respectively mounted on the three second rotating shafts; The three gears respectively mesh with the three fourth gears; the three third gears respectively mesh with the limit drive gears; the three third shafts are circumferentially evenly mounted on the upper end of the second support disc, and the three third shafts are away from each other a second supporting circular plate center; three second gears are respectively mounted on the three third rotating shafts; the first supporting circular plate has a circular hole at an intermediate position; a connecting sleeve is installed at an intermediate position of the first supporting circular plate end and The connecting sleeve cooperates with the circular hole on the first supporting plate; the first supporting circular plate is mounted on the upper ends of the three third rotating shafts; one end of the front connecting rod is mounted on the first supporting circular plate through the connecting sleeve; the front compartment is connected The other end of the rod and the front a first gear is mounted on the front car connecting rod; the first gear is respectively meshed with the three second gears; the driving shell is mounted on the first supporting circular plate through the cooperation of the first shaft hole and the connecting sleeve; The first circular hole cooperates with the limiting cylinder; the teeth on the inner surface of the driving shell are respectively meshed with the three fourth gears and the three second gears. In the present invention, the joint formed by the limit connection through the intersection of the upper two guide notches is located on the upper side of the limit block; and the limit block is in a stationary state; therefore, the limit connection is in the rotation direction. a stationary state; that is, the second supporting circular plate is in a stationary state in the rotating direction; the first rotating shaft, the second rotating shaft and the third rotating shaft are in a stationary state; the first supporting circular plate is in a stationary state in the rotating direction; the current carriage connecting rod is swung When the front car connecting rod drives the first gear to rotate; the first gear rotates to drive the three second gears to rotate; the three second gears rotate to drive the driving shell to rotate; the driving shell rotates to drive the three fourth gears to rotate; The four gears rotate to drive the three third gears to rotate; the three third gears rotate to drive the limit drive gears to rotate; during the rotation of the limit drive gears, when a guide groove on the limit drive cylinder is connected with the limit connection When the guiding gap is matched, the rear trunk connecting rod and the limiting block mounted thereon are disengaged from the front trunk along the corresponding guiding groove and the guiding notch; the present invention The diameter of the first gear of the gauge is larger than the diameter of the limit drive gear; the function is that when the front connecting rod is swung a certain angle, the rear connecting rod and the limit block mounted thereon are disengaged from the front box Preventing the front and rear trains from turning over the train because of the large angle of the swing.

Beneficial effect

Compared with the traditional car connection technology, the car connecting mechanism designed by the present invention can derail the current car during use and swing relative to the rear car, and the rear car and the front car can be completely disengaged by automatic adjustment. It protects the safety of people's lives and property.

DRAWINGS

Figure 1 is a schematic view of the appearance of an integral part.

Figure 2 is a schematic view of the overall component distribution.

Figure 3 is a schematic view of the installation of the limit drive gear.

Figure 4 is a schematic view of the first gear mounting.

Figure 5 is a schematic view of the structure of the drive housing.

Figure 6 is a schematic view showing the internal structure distribution of the integral part.

Figure 7 is a schematic view showing the internal structure of the integral component.

Figure 8 is a schematic view of the installation of the connecting sleeve.

Figure 9 is a schematic view of the fourth gear mounting.

Figure 10 is a schematic view of the second gear mounting.

Figure 11 is a schematic view showing the installation of the limit drive gear.

Figure 12 is a schematic view of the installation of the limit block.

Figure 13 is a schematic view of a limit connection structure.

Figure 14 is a schematic view of the cooperation between the rear trunk connecting rod and the limit driving gear.

Figure 15 is a schematic view showing the structure of the limit drive gear.

Figure 16 is a schematic diagram of the working principle of the limit drive gear.

In the figure, the label name: 1, the front car connecting rod; 2, the first gear; 3, the first shaft hole; 4, the first circular hole; 5, the second gear; 6, the third gear; 7, the drive shell; 8. Rear trunk connecting rod; 9, first supporting circular plate; 10, fourth gear; 11, first rotating shaft; 12, second rotating shaft; 13, third rotating shaft; 14, sixth gear; Gear; 16, limit connection; 17, second support circular plate; 18, connecting sleeve; 24, limit block; 25, guiding notch; 26, first cylindrical groove; 27, guiding groove; 28, second cylindrical groove .

BEST MODE FOR CARRYING OUT THE INVENTION

As shown in FIGS. 1 and 2, it includes a front car connecting rod 1, a first gear 2, a first shaft hole 3, a first circular hole 4, a second gear 5, a third gear 6, a drive housing 7, and a rear trunk. Connecting rod 8, first supporting circular plate 9, fourth gear 10, first rotating shaft 11, second rotating shaft 12, third rotating shaft 13, sixth gear 14, limit driving gear 15, limit connection 16, second support The circular plate 17, the connecting sleeve 18, the limiting block 24, the guiding notch 25, the first cylindrical groove 26, the guiding groove 27, and the second cylindrical groove 28, wherein as shown in Fig. 12, the rear connecting rod is L-shaped; the rear compartment One end of the connecting rod is connected to the rear compartment; the limiting block 24 is mounted at the other end of the rear compartment connecting rod.

As shown in FIG. 13, one end of the limit connection 16 is provided with two symmetrical guide notches 25 and the intersection of the two guide notches 25 forms a plane; as shown in FIG. 11, the limit connection 16 passes through the upper two guides. The fit of the plane formed by the intersection of the notches 25 and the stop block 24 is located on the upper side of the stop block 24.

As shown in FIG. 15, the limit drive gear 15 has a first cylindrical groove 26 at one end thereof; the bottom end of the first cylindrical groove 26 has a second cylindrical groove 28 therethrough; and the outer cylindrical surface of the limit cylinder has two a guide groove 27 forming an acute angle; as shown in FIG. 11, the limit drive cylinder is mounted on the limit connection 16 by the cooperation of the first cylindrical groove 26 and the outer circumference of the limit connection 16; as shown in FIG. The side of the second cylindrical groove 28 on the limit drive cylinder that is away from the guide groove 27 cooperates with the rear trunk connecting rod 8.

As shown in FIG. 6, the second supporting circular plate 17 is mounted on the upper end of the limiting connection 16; as shown in FIG. 9, the three first rotating shafts 11 are circumferentially uniformly mounted on the lower end of the second supporting circular plate 17 and away from the first Two supporting discs 17 are centered; three fourth gears 10 are respectively mounted on the three first rotating shafts 11; three second rotating shafts 12 are circumferentially evenly mounted on the lower end of the second supporting circular plate 17 and adjacent to the second supporting circle The center of the plate 17; the three third gears 6 are respectively mounted on the three second rotating shafts 12; the three third gears 6 are respectively meshed with the three fourth gears 10; as shown in Fig. 7, the three third gears 6 respectively Engaged with the limit drive gear 15; as shown in FIG. 10, three third rotating shafts 13 are circumferentially uniformly mounted on the upper end of the second support circular plate 17, and the three third rotary shafts 13 are away from the center of the second support circular plate 17 The three second gears 5 are respectively mounted on the three third rotating shafts 13; as shown in FIG. 8, the first supporting circular plate 9 has a circular hole at an intermediate position; the intermediate position of the upper end of the first supporting circular plate 9 is installed. There is a connecting sleeve 18 and the connecting sleeve 18 cooperates with a circular hole on the first supporting plate; the first supporting circular plate 9 is installed in three third The upper end of the shaft 13; as shown in Fig. 3, the front car connecting rod 1 is L-shaped; one end of the front car connecting rod 1 is mounted on the first supporting circular plate 9 through the connecting sleeve 18; the other end of the front car connecting rod 1 is The front car is connected; as shown in FIG. 4, the first gear 2 is mounted on the front car connecting rod 1; the first gear 2 is respectively meshed with the three second gears 5; as shown in FIG. 5, one end of the driving shell 7 is opened. a first shaft hole 3; the other end of the driving shell 7 is opened with a first circular hole 4; the inner circular surface of the driving shell 7 has teeth; as shown in FIG. 4, the driving shell 7 is connected through the first shaft hole 3 The sleeve 18 is mounted on the first support circular plate 9; the first circular hole 4 on the drive housing 7 is engaged with the limit cylinder; the teeth on the inner circumference of the drive housing 7 are respectively combined with the three fourth gears 10 and The three second gears 5 mesh.

The diameter of the first gear 2 described above is larger than the diameter of the limit drive gear 15.

The connecting sleeve 18 and the driving shell 7 are connected by a bearing fit.

The first gear 2 and the front compartment connecting rod 1 are connected by welding.

The above-mentioned connecting sleeve 18 is mounted on the front compartment connecting rod 1 by bearings.

In summary:

The car connecting mechanism designed by the invention can derail the current car during use and swing relative to the rear car, and the rear car and the front car can be completely disengaged by automatic adjustment. It protects the safety of people's lives and property.

In the present invention, one end of the rear compartment connecting rod is connected to the rear compartment; the limiting block 24 is mounted at the other end of the rear compartment connecting rod. The engagement of the limit connection 16 with the stop block 24 by the plane formed by the intersection of the upper two guide notches 25 is located on the upper side of the limit block 24. The limit drive cylinder is mounted on the limit connection 16 by the cooperation of the first cylindrical groove 26 and the outer circumference of the limit connection 16; the limit drive cylinder has a second cylindrical groove 28 away from the side of the guide groove 27 and the rear trunk connecting rod 8 cooperation. The second supporting circular plate 17 is mounted at the upper end of the limiting connection 16; the three first rotating shafts 11 are circumferentially evenly mounted at the lower end of the second supporting circular plate 17 and away from the center of the second supporting circular plate 17; three fourth gears 10 are respectively mounted on the three first rotating shafts 11; the three second rotating shafts 12 are circumferentially evenly mounted on the lower end of the second supporting circular plate 17 and near the center of the second supporting circular plate 17; the three third gears 6 are respectively installed On the three second rotating shafts 12; the three third gears 6 are respectively meshed with the three fourth gears 10; the three third gears 6 are respectively meshed with the limit driving gears 15; the three third rotating shafts 13 are circumferentially evenly Installed on the upper end of the second supporting circular plate 17, and the three third rotating shafts 13 are away from the center of the second supporting circular plate 17; the three second gears 5 are respectively mounted on the three third rotating shafts 13; the first supporting circular plate 9 The middle position has a circular hole; the intermediate position of the upper end of the first supporting circular plate 9 is mounted with the connecting sleeve 18 and the connecting sleeve 18 is engaged with the circular hole of the first supporting plate; the first supporting circular plate 9 is installed at three The upper end of the third rotating shaft 13; one end of the front connecting rod 1 is mounted on the first branch through the connecting sleeve 18 The other end of the front car connecting rod 1 is connected to the front car; the first gear 2 is mounted on the front car connecting rod 1; the first gear 2 is respectively meshed with the three second gears 5; the driving shell 7 passes The first shaft hole 3 and the connecting sleeve 18 are mounted on the first supporting circular plate 9; the first circular hole 4 on the driving shell 7 is matched with the limiting cylinder; the teeth on the inner surface of the driving shell 7 are respectively The three fourth gears 10 mesh with the three second gears 5. In the present invention, the matching of the limiting connection 16 by the plane formed by the intersection of the upper two guiding notches 25 and the limiting block 24 is located on the upper side of the limiting block 24; and the limiting block 24 is in a stationary state; 16 is in a stationary state in the direction of rotation; that is, the second supporting circular plate 17 is in a stationary state in the rotational direction; the first rotating shaft 11, the second rotating shaft 12 and the third rotating shaft 13 are in a stationary state; the first supporting circular plate 9 is rotating The direction is in a stationary state; as shown in FIG. 16a, when the current car connecting rod 1 swings, the front car connecting rod 1 will drive the first gear 2 to rotate; the first gear 2 rotates to drive the three second gears 5 to rotate; The rotation of the two gears 5 drives the driving shell 7 to rotate; the driving shell 7 rotates to drive the three fourth gears 10 to rotate; the three fourth gears 10 rotate to drive the three third gears 6 to rotate; the three third gears 6 rotate to drive the limit driving The gear 15 rotates; during the rotation of the limit drive gear 15, as shown in Fig. 16b, when a guide groove 27 on the limit drive cylinder is engaged with the corresponding guide notch 25 on the limit connection 16, as shown in Fig. 16c , rear car connecting rod 8 and safety The limiting block 24 mounted thereon is disengaged from the front car along the corresponding guiding groove 27 and the guiding notch 25; the diameter of the first gear 2 designed by the present invention is larger than the diameter of the limit driving gear 15; When the front car connecting rod 1 is swung by a certain small angle, the rear car connecting rod 8 and the limiting block 24 mounted thereon are disengaged from the front car; the train front and rear cars are prevented from being overturned due to the large angle of the swing. .

Embodiments of the invention

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS: When using the car connecting mechanism designed by the present invention, if the front car is derailed during the running of the train, the front car will swing relative to the rear car; that is, the front car drives the front car connecting rod 1 to swing; the front car The connecting rod 1 will drive the first gear 2 to rotate; the first gear 2 rotates to drive the three second gears 5 to rotate; the three second gears 5 rotate to drive the driving shell 7 to rotate; the driving shell 7 rotates to drive the three fourth gears 10 to rotate The three fourth gears 10 rotate to drive the three third gears 6 to rotate; the three third gears 6 rotate to drive the limit drive gear 15 to rotate; during the rotation of the limit drive gear 15, when the limit drive cylinder When the guiding groove 27 is engaged with the corresponding guiding notch 25 on the limiting connection 16, the rear trunk connecting rod 8 and the limiting block 24 mounted thereon are disengaged from the front trunk along the corresponding guiding groove 27 and the guiding notch 25. .

Industrial applicability

The present invention has been successfully developed and used, and has achieved the desired effects.

Claims

A detachable hook mechanism for a car connection based on a gear transmission, characterized in that it comprises a front car connecting rod, a first gear, a first shaft hole, a first circular hole, a second gear, a third gear, Drive shell, rear trunk connecting rod, first supporting circular plate, fourth gear, first rotating shaft, second rotating shaft, third rotating shaft, sixth gear, limit driving gear, limit connection, second supporting circular plate, connection a sleeve, a limit block, a guide notch, a first cylindrical groove, a guide groove, a second cylindrical groove, wherein the rear car connecting rod is L-shaped; one end of the rear car connecting rod is connected with the rear car; the limit block is installed in the rear car connection The other end of the rod;

One end of the limit connection has two symmetrical guide notches and a intersection of the two guide notches forms a plane; the connection of the limit connection through the intersection of the two guide notches at the intersection thereof and the limit block is located at the limit block Upper side

The first end of the limit drive gear has a first cylindrical groove; the bottom end of the first cylindrical groove has a second cylindrical groove; and the outer circular surface of the limit cylinder has two guide grooves at an acute angle; The bit drive cylinder is mounted on the limit connection by the cooperation of the first cylindrical groove and the outer ring surface of the limit connection; the side of the second cylindrical groove on the limit drive cylinder is away from the guide groove and cooperates with the rear car connecting rod;

The second supporting circular plate is installed at the upper end of the limiting connection; the three first rotating shafts are circumferentially evenly mounted on the lower end of the second supporting circular plate and away from the center of the second supporting circular plate; the three fourth gears are respectively installed in three a first rotating shaft; three second rotating shafts are circumferentially evenly mounted on the lower end of the second supporting circular plate and near the center of the second supporting circular plate; three third gears are respectively mounted on the three second rotating shafts; The three gears respectively mesh with the three fourth gears; the three third gears respectively mesh with the limit drive gears; the three third shafts are circumferentially evenly mounted on the upper end of the second support disc, and the three third shafts are away from each other a second supporting circular plate center; three second gears are respectively mounted on the three third rotating shafts; the first supporting circular plate has a circular hole at an intermediate position; a connecting sleeve is installed at an intermediate position of the first supporting circular plate end and The connecting sleeve is matched with the circular hole on the first supporting plate; the first supporting circular plate is installed at the upper end of the three third rotating shafts; the front connecting rod connecting rod is L-shaped; one end of the front connecting rod connecting rod is installed at the first through the connecting sleeve Supporting disc; front compartment The other end of the connecting rod is connected to the front car; the first gear is mounted on the front car connecting rod; the first gear is respectively meshed with the three second gears; the driving shell has a first shaft hole at one end; and the other end of the driving shell is open a first circular hole; the inner circular surface of the driving shell has teeth; the driving shell is mounted on the first supporting circular plate through the cooperation of the first shaft hole and the connecting sleeve; the first circular hole and the limit on the driving shell The cylindrical portion is fitted; the teeth on the inner surface of the driving shell are respectively meshed with the three fourth gears and the three second gears.
A detachable hook mechanism for a vehicle body connection based on a gear transmission according to claim 1, wherein the diameter of the first gear is larger than the diameter of the limit drive gear.
A detachable hook mechanism for a vehicle connection based on a gear transmission according to claim 1, wherein the connecting sleeve and the drive housing are coupled by a bearing.
A detachable hook mechanism for a car-to-vehicle connection based on a gear transmission according to claim 1, wherein said first gear and said front car connecting rod are connected by welding.
A detachable hook mechanism for a car-to-vehicle connection based on a gear transmission according to claim 1, wherein said connecting sleeve is mounted on a front car connecting rod via a bearing.
A car connecting mechanism, comprising: a front car connecting rod, a first gear, a first shaft hole, a first circular hole, a second gear, a third gear, a driving shell, a rear trunk connecting rod, and a first Supporting circular plate, fourth gear, first rotating shaft, second rotating shaft, third rotating shaft, sixth gear, limit driving gear, limit connection, second supporting circular plate, connecting sleeve, limiting block, guiding notch, first a cylindrical groove, a guiding groove, a second cylindrical groove, wherein the rear car connecting rod is L-shaped; one end of the rear car connecting rod is connected with the rear car; the limiting block is installed at the other end of the rear car connecting rod;

One end of the limit connection has two symmetrical guide notches and a intersection of the two guide notches forms a plane; the connection of the limit connection through the intersection of the two guide notches at the intersection thereof and the limit block is located at the limit block Upper side

The first end of the limit drive gear has a first cylindrical groove; the bottom end of the first cylindrical groove has a second cylindrical groove; and the outer circular surface of the limit cylinder has two guide grooves at an acute angle; The bit drive cylinder is mounted on the limit connection by the cooperation of the first cylindrical groove and the outer ring surface of the limit connection; the side of the second cylindrical groove on the limit drive cylinder is away from the guide groove and cooperates with the rear car connecting rod;

The second supporting circular plate is installed at the upper end of the limiting connection; the three first rotating shafts are circumferentially evenly mounted on the lower end of the second supporting circular plate and away from the center of the second supporting circular plate; the three fourth gears are respectively installed in three a first rotating shaft; three second rotating shafts are circumferentially evenly mounted on the lower end of the second supporting circular plate and near the center of the second supporting circular plate; three third gears are respectively mounted on the three second rotating shafts; The three gears respectively mesh with the three fourth gears; the three third gears respectively mesh with the limit drive gears; the three third shafts are circumferentially evenly mounted on the upper end of the second support disc, and the three third shafts are away from each other a second supporting circular plate center; three second gears are respectively mounted on the three third rotating shafts; the first supporting circular plate has a circular hole at an intermediate position; a connecting sleeve is installed at an intermediate position of the first supporting circular plate end and The connecting sleeve is matched with the circular hole on the first supporting plate; the first supporting circular plate is installed at the upper end of the three third rotating shafts; the front connecting rod connecting rod is L-shaped; one end of the front connecting rod connecting rod is installed at the first through the connecting sleeve Supporting disc; front compartment The other end of the connecting rod is connected to the front car; the first gear is mounted on the front car connecting rod; the first gear is respectively meshed with the three second gears; the driving shell has a first shaft hole at one end; and the other end of the driving shell is open a first circular hole; the inner circular surface of the driving shell has teeth; the driving shell is mounted on the first supporting circular plate through the cooperation of the first shaft hole and the connecting sleeve; the first circular hole and the limit on the driving shell a cylindrical fit; the teeth on the inner surface of the drive shell are respectively meshed with the three fourth gears and the three second gears;

The diameter of the first gear is greater than the diameter of the limit drive gear;

The first gear and the front car connecting rod are connected by welding.
A car connecting mechanism, comprising: a front car connecting rod, a first gear, a first shaft hole, a first circular hole, a second gear, a third gear, a driving shell, a rear trunk connecting rod, and a first Supporting circular plate, fourth gear, first rotating shaft, second rotating shaft, third rotating shaft, sixth gear, limit driving gear, limit connection, second supporting circular plate, connecting sleeve, limiting block, guiding notch, first a cylindrical groove, a guiding groove, a second cylindrical groove, wherein the rear car connecting rod is L-shaped; one end of the rear car connecting rod is connected with the rear car; the limiting block is installed at the other end of the rear car connecting rod;

One end of the limit connection has two symmetrical guide notches and a intersection of the two guide notches forms a plane; the connection of the limit connection through the intersection of the two guide notches at the intersection thereof and the limit block is located at the limit block Upper side

The first end of the limit drive gear has a first cylindrical groove; the bottom end of the first cylindrical groove has a second cylindrical groove; and the outer circular surface of the limit cylinder has two guide grooves at an acute angle; The bit drive cylinder is mounted on the limit connection by the cooperation of the first cylindrical groove and the outer ring surface of the limit connection; the side of the second cylindrical groove on the limit drive cylinder is away from the guide groove and cooperates with the rear car connecting rod;

The second supporting circular plate is installed at the upper end of the limiting connection; the three first rotating shafts are circumferentially evenly mounted on the lower end of the second supporting circular plate and away from the center of the second supporting circular plate; the three fourth gears are respectively installed in three a first rotating shaft; three second rotating shafts are circumferentially evenly mounted on the lower end of the second supporting circular plate and near the center of the second supporting circular plate; three third gears are respectively mounted on the three second rotating shafts; The three gears respectively mesh with the three fourth gears; the three third gears respectively mesh with the limit drive gears; the three third shafts are circumferentially evenly mounted on the upper end of the second support disc, and the three third shafts are away from each other a second supporting circular plate center; three second gears are respectively mounted on the three third rotating shafts; the first supporting circular plate has a circular hole at an intermediate position; a connecting sleeve is installed at an intermediate position of the first supporting circular plate end and The connecting sleeve is matched with the circular hole on the first supporting plate; the first supporting circular plate is installed at the upper end of the three third rotating shafts; the front connecting rod connecting rod is L-shaped; one end of the front connecting rod connecting rod is installed at the first through the connecting sleeve Supporting disc; front compartment The other end of the connecting rod is connected to the front car; the first gear is mounted on the front car connecting rod; the first gear is respectively meshed with the three second gears; the driving shell has a first shaft hole at one end; and the other end of the driving shell is open a first circular hole; the inner circular surface of the driving shell has teeth; the driving shell is mounted on the first supporting circular plate through the cooperation of the first shaft hole and the connecting sleeve; the first circular hole and the limit on the driving shell a cylindrical fit; the teeth on the inner surface of the drive shell are respectively meshed with the three fourth gears and the three second gears;

The diameter of the first gear is greater than the diameter of the limit drive gear;

The connecting sleeve is mounted on the front compartment connecting rod by bearings.